C72

Transparent and grainy, the black spots looked a little like softening jellyfish skin.

Furthermore, after the mucus stuck onto the knife, it quickly dried up.

Zhang Tiangang looked at what was on the blade blade, although he didn't know what to call it, when we dug into the ground, we didn't see anything similar.

I asked Zhang Jia what this was, and Zhang Jia didn't know either